Commit Graph

1200079 Commits

Author SHA1 Message Date
Jens Axboe
faa9c0ee3c io_uring/timeout: always set 'ctx' in io_cancel_data
In preparation for using a generic handler to match requests for
cancelation purposes, ensure that ctx is set in io_cancel_data. The
timeout handlers don't check for this as it'll always match, but we'll
need it set going forward.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-07-17 10:05:48 -06:00
Jens Axboe
ad711c5d11 io_uring/poll: always set 'ctx' in io_cancel_data
This isn't strictly necessary for this callsite, as it uses it's
internal lookup for this cancelation purpose. But let's be consistent
with how it's used in general and set ctx as well.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-07-17 10:05:48 -06:00
Linus Torvalds
fdf0eaf114 Linux 6.5-rc2 2023-07-16 15:10:37 -07:00
Linus Torvalds
5b8d6e8539 Xtensa fixes for v6.5:
- fix interaction between unaligned exception handler and load/store
   exception handler
 - fix parsing ISS network interface specification string
 - add comment about etherdev freeing to ISS network sriver
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Merge tag 'xtensa-20230716' of https://github.com/jcmvbkbc/linux-xtensa

Pull xtensa fixes from Max Filippov:

 - fix interaction between unaligned exception handler and load/store
   exception handler

 - fix parsing ISS network interface specification string

 - add comment about etherdev freeing to ISS network driver

* tag 'xtensa-20230716' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: fix unaligned and load/store configuration interaction
  xtensa: ISS: fix call to split_if_spec
  xtensa: ISS: add comment about etherdev freeing
2023-07-16 14:12:49 -07:00
Linus Torvalds
1667e630c2 - Fix a lockdep warning when the event given is the first one, no event
group exists yet but the code still goes and iterates over event
   siblings
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Merge tag 'perf_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - Fix a lockdep warning when the event given is the first one, no event
   group exists yet but the code still goes and iterates over event
   siblings

* tag 'perf_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Fix lockdep warning in for_each_sibling_event() on SPR
2023-07-16 13:46:08 -07:00
Linus Torvalds
8a3e4a6484 - Mark copy_iovec_from_user() __noclone in order to prevent gcc from
doing an inter-procedural optimization and confuse objtool
 
 - Initialize struct elf fully to avoid build failures
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Merge tag 'objtool_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fixes from Borislav Petkov:

 - Mark copy_iovec_from_user() __noclone in order to prevent gcc from
   doing an inter-procedural optimization and confuse objtool

 - Initialize struct elf fully to avoid build failures

* tag 'objtool_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  iov_iter: Mark copy_iovec_from_user() noclone
  objtool: initialize all of struct elf
2023-07-16 13:34:29 -07:00
Linus Torvalds
f61a89ca11 - Remove a cgroup from under a polling process properly
- Fix the idle sibling selection
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Merge tag 'sched_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Borislav Petkov:

 - Remove a cgroup from under a polling process properly

 - Fix the idle sibling selection

* tag 'sched_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/psi: use kernfs polling functions for PSI trigger polling
  sched/fair: Use recent_used_cpu to test p->cpus_ptr
2023-07-16 13:22:08 -07:00
Linus Torvalds
ede950b019 Pin control fixes for the v6.5 series:
- Fix a really annoying interrupt storm in the AMD driver
   affecting Asus TUF gaming notebooks.
 
 - Fix device tree parsing in the Renesas driver.
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Merge tag 'pinctrl-v6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "I'm mostly on vacation but what would vacation be without a few
  critical fixes so people can use their gaming laptops when hiding away
  from the sun (or rain)?

   - Fix a really annoying interrupt storm in the AMD driver affecting
     Asus TUF gaming notebooks

   - Fix device tree parsing in the Renesas driver"

* tag 'pinctrl-v6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: amd: Unify debounce handling into amd_pinconf_set()
  pinctrl: amd: Drop pull up select configuration
  pinctrl: amd: Use amd_pinconf_set() for all config options
  pinctrl: amd: Only use special debounce behavior for GPIO 0
  pinctrl: renesas: rzg2l: Handle non-unique subnode names
  pinctrl: renesas: rzv2m: Handle non-unique subnode names
2023-07-16 12:55:31 -07:00
Linus Torvalds
fe756ad021 Five smb3 client fixes
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Merge tag '6.5-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Two reconnect fixes: important fix to address inFlight count to leak
   (which can leak credits), and fix for better handling a deleted share

 - DFS fix

 - SMB1 cleanup fix

 - deferred close fix

* tag '6.5-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix mid leak during reconnection after timeout threshold
  cifs: is_network_name_deleted should return a bool
  smb: client: fix missed ses refcounting
  smb: client: Fix -Wstringop-overflow issues
  cifs: if deferred close is disabled then close files immediately
2023-07-16 12:49:05 -07:00
Linus Torvalds
20edcec23f powerpc fixes for 6.5 #3
- Fix Speculation_Store_Bypass reporting in /proc/self/status on Power10.
 
  - Fix HPT with 4K pages since recent changes by implementing pmd_same().
 
  - Fix 64-bit native_hpte_remove() to be irq-safe.
 
 Thanks to: Aneesh Kumar K.V, Nageswara R Sastry, Russell Currey.
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Merge tag 'powerpc-6.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix Speculation_Store_Bypass reporting in /proc/self/status on
   Power10

 - Fix HPT with 4K pages since recent changes by implementing pmd_same()

 - Fix 64-bit native_hpte_remove() to be irq-safe

Thanks to Aneesh Kumar K.V, Nageswara R Sastry, and Russell Currey.

* tag 'powerpc-6.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/mm/book3s64/hash/4k: Add pmd_same callback for 4K page size
  powerpc/64e: Fix obtool warnings in exceptions-64e.S
  powerpc/security: Fix Speculation_Store_Bypass reporting on Power10
  powerpc/64s: Fix native_hpte_remove() to be irq-safe
2023-07-16 12:28:04 -07:00
Linus Torvalds
6eede0686f hardening fixes for v6.5-rc2
- Remove LTO-only suffixes from promoted global function symbols (Yonghong Song)
 
 - Remove unused .text..refcount section from vmlinux.lds.h (Petr Pavlu)
 
 - Add missing __always_inline to sparc __arch_xchg() (Arnd Bergmann)
 
 - Claim maintainership of string routines
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Merge tag 'hardening-v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - Remove LTO-only suffixes from promoted global function symbols
   (Yonghong Song)

 - Remove unused .text..refcount section from vmlinux.lds.h (Petr Pavlu)

 - Add missing __always_inline to sparc __arch_xchg() (Arnd Bergmann)

 - Claim maintainership of string routines

* tag 'hardening-v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  sparc: mark __arch_xchg() as __always_inline
  MAINTAINERS: Foolishly claim maintainership of string routines
  kallsyms: strip LTO-only suffixes from promoted global functions
  vmlinux.lds.h: Remove a reference to no longer used sections .text..refcount
2023-07-16 12:18:18 -07:00
Linus Torvalds
4b4eef57e6 Probe fixes for 6.5-rc1, the 2nd set:
- fprobe: Add a comment why fprobe will be skipped if another kprobe is
    running in fprobe_kprobe_handler().
 
  - probe-events: Fix some issues related to fetch-argument
   . Fix double counting of the string length for user-string and symstr.
     This will require longer buffer in the array case.
   . Fix not to count error code (minus value) for the total used length
     in array argument. This makes the total used length shorter.
   . Fix to update dynamic used data size counter only if fetcharg uses
     the dynamic size data. This may mis-count the used dynamic data
     size and corrupt data.
   . Revert "tracing: Add "(fault)" name injection to kernel probes"
     because that did not work correctly with a bug, and we agreed the
     current '(fault)' output (instead of '"(fault)"' like a string)
     explains what happened more clearly.
   . Fix to record 0-length (means fault access) data_loc data in fetch
     function itself, instead of store_trace_args(). If we record an
     array of string, this will fix to save fault access data on each
     entry of the array correctly.
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Merge tag 'probes-fixes-v6.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probe fixes from Masami Hiramatsu:

 - fprobe: Add a comment why fprobe will be skipped if another kprobe is
   running in fprobe_kprobe_handler().

 - probe-events: Fix some issues related to fetch-arguments:

    - Fix double counting of the string length for user-string and
      symstr. This will require longer buffer in the array case.

    - Fix not to count error code (minus value) for the total used
      length in array argument. This makes the total used length
      shorter.

    - Fix to update dynamic used data size counter only if fetcharg uses
      the dynamic size data. This may mis-count the used dynamic data
      size and corrupt data.

    - Revert "tracing: Add "(fault)" name injection to kernel probes"
      because that did not work correctly with a bug, and we agreed the
      current '(fault)' output (instead of '"(fault)"' like a string)
      explains what happened more clearly.

    - Fix to record 0-length (means fault access) data_loc data in fetch
      function itself, instead of store_trace_args(). If we record an
      array of string, this will fix to save fault access data on each
      entry of the array correctly.

* tag 'probes-fixes-v6.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails
  Revert "tracing: Add "(fault)" name injection to kernel probes"
  tracing/probes: Fix to update dynamic data counter if fetcharg uses it
  tracing/probes: Fix not to count error code to total length
  tracing/probes: Fix to avoid double count of the string length on the array
  fprobes: Add a comment why fprobe_kprobe_handler exits if kprobe is running
2023-07-16 12:13:51 -07:00
Linus Torvalds
831fe284d8 spi: Fixes for v6.5
A couple of fairly minor driver specific fixes here, plus a bunch of
 maintainership and admin updates.  Nothing too remarkable.
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Merge tag 'spi-fix-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A couple of fairly minor driver specific fixes here, plus a bunch of
  maintainership and admin updates. Nothing too remarkable"

* tag 'spi-fix-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  mailmap: add entry for Jonas Gorski
  MAINTAINERS: add myself for spi-bcm63xx
  spi: s3c64xx: clear loopback bit after loopback test
  spi: bcm63xx: fix max prepend length
  MAINTAINERS: Add myself as a maintainer for Microchip SPI
2023-07-15 08:51:02 -07:00
Linus Torvalds
393ea78172 regmap: Fix for v6.5
One fix for an out of bounds access in the interupt code here.
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Merge tag 'regmap-fix-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fix from Mark Brown:
 "One fix for an out of bounds access in the interupt code here"

* tag 'regmap-fix-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap-irq: Fix out-of-bounds access when allocating config buffers
2023-07-15 08:46:09 -07:00
Linus Torvalds
82678ab2a4 IOMMU Fixes for Linux v6.5-rc1
Including:
 
 	- Fix a regression causing a crash on sysfs access of iommu-group
 	  specific files
 
 	- Fix signedness bug in SVA code
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Merge tag 'iommu-fixes-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Fix a regression causing a crash on sysfs access of iommu-group
   specific files

 - Fix signedness bug in SVA code

* tag 'iommu-fixes-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/sva: Fix signedness bug in iommu_sva_alloc_pasid()
  iommu: Fix crash during syfs iommu_groups/N/type
2023-07-15 08:40:00 -07:00
Linus Torvalds
b6e6cc1f78 Fix kCFI/FineIBT weaknesses
The primary bug Alyssa noticed was that with FineIBT enabled function
 prologues have a spurious ENDBR instruction:
 
   __cfi_foo:
 	endbr64
 	subl	$hash, %r10d
 	jz	1f
 	ud2
 	nop
   1:
   foo:
 	endbr64 <--- *sadface*
 
 This means that any indirect call that fails to target the __cfi symbol
 and instead targets (the regular old) foo+0, will succeed due to that
 second ENDBR.
 
 Fixing this lead to the discovery of a single indirect call that was
 still doing this: ret_from_fork(), since that's an assembly stub the
 compmiler would not generate the proper kCFI indirect call magic and it
 would not get patched.
 
 Brian came up with the most comprehensive fix -- convert the thing to C
 with only a very thin asm wrapper. This ensures the kernel thread
 boostrap is a proper kCFI call.
 
 While discussing all this, Kees noted that kCFI hashes could/should be
 poisoned to seal all functions whose address is never taken, further
 limiting the valid kCFI targets -- much like we already do for IBT.
 
 So what was a 'simple' observation and fix cascaded into a bunch of
 inter-related CFI infrastructure fixes.
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Merge tag 'x86_urgent_for_6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 CFI fixes from Peter Zijlstra:
 "Fix kCFI/FineIBT weaknesses

  The primary bug Alyssa noticed was that with FineIBT enabled function
  prologues have a spurious ENDBR instruction:

    __cfi_foo:
	endbr64
	subl	$hash, %r10d
	jz	1f
	ud2
	nop
    1:
    foo:
	endbr64 <--- *sadface*

  This means that any indirect call that fails to target the __cfi
  symbol and instead targets (the regular old) foo+0, will succeed due
  to that second ENDBR.

  Fixing this led to the discovery of a single indirect call that was
  still doing this: ret_from_fork(). Since that's an assembly stub the
  compiler would not generate the proper kCFI indirect call magic and it
  would not get patched.

  Brian came up with the most comprehensive fix -- convert the thing to
  C with only a very thin asm wrapper. This ensures the kernel thread
  boostrap is a proper kCFI call.

  While discussing all this, Kees noted that kCFI hashes could/should be
  poisoned to seal all functions whose address is never taken, further
  limiting the valid kCFI targets -- much like we already do for IBT.

  So what was a 'simple' observation and fix cascaded into a bunch of
  inter-related CFI infrastructure fixes"

* tag 'x86_urgent_for_6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cfi: Only define poison_cfi() if CONFIG_X86_KERNEL_IBT=y
  x86/fineibt: Poison ENDBR at +0
  x86: Rewrite ret_from_fork() in C
  x86/32: Remove schedule_tail_wrapper()
  x86/cfi: Extend ENDBR sealing to kCFI
  x86/alternative: Rename apply_ibt_endbr()
  x86/cfi: Extend {JMP,CAKK}_NOSPEC comment
2023-07-14 20:19:25 -07:00
Linus Torvalds
be522ac7cd SCSI fixes on 20230714
This is a bunch of small driver fixes and a larger rework of zone disk
 handling (which reaches into blk and nvme).  The aacraid array-bounds
 fix is now critical since the security people turned on -Werror for
 some build tests, which now fail without it.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a bunch of small driver fixes and a larger rework of zone disk
  handling (which reaches into blk and nvme).

  The aacraid array-bounds fix is now critical since the security people
  turned on -Werror for some build tests, which now fail without it"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: storvsc: Handle SRB status value 0x30
  scsi: block: Improve checks in blk_revalidate_disk_zones()
  scsi: block: virtio_blk: Set zone limits before revalidating zones
  scsi: block: nullblk: Set zone limits before revalidating zones
  scsi: nvme: zns: Set zone limits before revalidating zones
  scsi: sd_zbc: Set zone limits before revalidating zones
  scsi: ufs: core: Add support for qTimestamp attribute
  scsi: aacraid: Avoid -Warray-bounds warning
  scsi: ufs: ufs-mediatek: Add dependency for RESET_CONTROLLER
  scsi: ufs: core: Update contact email for monitor sysfs nodes
  scsi: scsi_debug: Remove dead code
  scsi: qla2xxx: Use vmalloc_array() and vcalloc()
  scsi: fnic: Use vmalloc_array() and vcalloc()
  scsi: qla2xxx: Fix error code in qla2x00_start_sp()
  scsi: qla2xxx: Silence a static checker warning
  scsi: lpfc: Fix a possible data race in lpfc_unregister_fcf_rescan()
2023-07-14 19:57:29 -07:00
Linus Torvalds
b3bd86a049 block-6.5-2023-07-14
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Merge tag 'block-6.5-2023-07-14' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
      - Don't require quirk to use duplicate namespace identifiers
        (Christoph, Sagi)
      - One more BOGUS_NID quirk (Pankaj)
      - IO timeout and error hanlding fixes for PCI (Keith)
      - Enhanced metadata format mask fix (Ankit)
      - Association race condition fix for fibre channel (Michael)
      - Correct debugfs error checks (Minjie)
      - Use PAGE_SECTORS_SHIFT where needed (Damien)
      - Reduce kernel logs for legacy nguid attribute (Keith)
      - Use correct dma direction when unmapping metadata (Ming)

 - Fix for a flush handling regression in this release (Christoph)

 - Fix for batched request time stamping (Chengming)

 - Fix for a regression in the mq-deadline position calculation (Bart)

 - Lockdep fix for blk-crypto (Eric)

 - Fix for a regression in the Amiga partition handling changes
   (Michael)

* tag 'block-6.5-2023-07-14' of git://git.kernel.dk/linux:
  block: queue data commands from the flush state machine at the head
  blk-mq: fix start_time_ns and alloc_time_ns for pre-allocated rq
  nvme-pci: fix DMA direction of unmapping integrity data
  nvme: don't reject probe due to duplicate IDs for single-ported PCIe devices
  block/mq-deadline: Fix a bug in deadline_from_pos()
  nvme: ensure disabling pairs with unquiesce
  nvme-fc: fix race between error recovery and creating association
  nvme-fc: return non-zero status code when fails to create association
  nvme: fix parameter check in nvme_fault_inject_init()
  nvme: warn only once for legacy uuid attribute
  block: remove dead struc request->completion_data field
  nvme: fix the NVME_ID_NS_NVM_STS_MASK definition
  nvmet: use PAGE_SECTORS_SHIFT
  nvme: add BOGUS_NID quirk for Samsung SM953
  blk-crypto: use dynamic lock class for blk_crypto_profile::lock
  block/partition: fix signedness issue for Amiga partitions
2023-07-14 19:52:18 -07:00
Linus Torvalds
ec17f16432 io_uring-6.5-2023-07-14
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Merge tag 'io_uring-6.5-2023-07-14' of git://git.kernel.dk/linux

Pull io_uring fix from Jens Axboe:
 "Just a single tweak for the wait logic in io_uring"

* tag 'io_uring-6.5-2023-07-14' of git://git.kernel.dk/linux:
  io_uring: Use io_schedule* in cqring wait
2023-07-14 19:46:54 -07:00
Linus Torvalds
2772d7df3c RISC-V Fixes for 6.5-rc2
* A fix for a formatting error in the hwprobe documentation.
 * A fix for a spurious warning in the RISC-V PMU driver.
 * A fix for memory detection on rv32, which does not manifest on any
   known system.
 * A fix to avoid parsing legacy parsing of I in ACPI ISA strings.
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Merge tag 'riscv-for-linus-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - fix a formatting error in the hwprobe documentation

 - fix a spurious warning in the RISC-V PMU driver

 - fix memory detection on rv32 (problem does not manifest on any known
   system)

 - avoid parsing legacy parsing of I in ACPI ISA strings

* tag 'riscv-for-linus-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: Don't include Zicsr or Zifencei in I from ACPI
  riscv: mm: fix truncation warning on RV32
  perf: RISC-V: Remove PERF_HES_STOPPED flag checking in riscv_pmu_start()
  Documentation: RISC-V: hwprobe: Fix a formatting error
2023-07-14 11:14:07 -07:00
Linus Torvalds
bde7f15027 Power management fixes for 6.5-rc2
- Unbreak the /sys/power/resume interface after recent changes (Azat
    Khuzhin).
 
  - Allow PM_QOS_DEFAULT_VALUE to be used with frequency QoS (Chungkai
    Yang).
 
  - Remove __init from cpufreq callbacks in the sparc driver, because
    they may be called after initialization too (Viresh Kumar).
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Merge tag 'pm-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix hibernation (after recent changes), frequency QoS and the
  sparc cpufreq driver.

  Specifics:

   - Unbreak the /sys/power/resume interface after recent changes (Azat
     Khuzhin).

   - Allow PM_QOS_DEFAULT_VALUE to be used with frequency QoS (Chungkai
     Yang).

   - Remove __init from cpufreq callbacks in the sparc driver, because
     they may be called after initialization too (Viresh Kumar)"

* tag 'pm-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: sparc: Don't mark cpufreq callbacks with __init
  PM: QoS: Restore support for default value on frequency QoS
  PM: hibernate: Fix writing maj:min to /sys/power/resume
2023-07-14 11:07:04 -07:00
Rafael J. Wysocki
d121758da6 Merge branches 'pm-sleep' and 'pm-qos'
Merge a PM QoS fix and a hibernation fix for 6.5-rc2.

 - Unbreak the /sys/power/resume interface after recent changes (Azat
   Khuzhin).

 - Allow PM_QOS_DEFAULT_VALUE to be used with frequency QoS (Chungkai
   Yang).

* pm-sleep:
  PM: hibernate: Fix writing maj:min to /sys/power/resume

* pm-qos:
  PM: QoS: Restore support for default value on frequency QoS
2023-07-14 19:13:21 +02:00
Shyam Prasad N
69cba9d3c1 cifs: fix mid leak during reconnection after timeout threshold
When the number of responses with status of STATUS_IO_TIMEOUT
exceeds a specified threshold (NUM_STATUS_IO_TIMEOUT), we reconnect
the connection. But we do not return the mid, or the credits
returned for the mid, or reduce the number of in-flight requests.

This bug could result in the server->in_flight count to go bad,
and also cause a leak in the mids.

This change moves the check to a few lines below where the
response is decrypted, even of the response is read from the
transform header. This way, the code for returning the mids
can be reused.

Also, the cifs_reconnect was reconnecting just the transport
connection before. In case of multi-channel, this may not be
what we want to do after several timeouts. Changed that to
reconnect the session and the tree too.

Also renamed NUM_STATUS_IO_TIMEOUT to a more appropriate name
MAX_STATUS_IO_TIMEOUT.

Fixes: 8e670f77c4 ("Handle STATUS_IO_TIMEOUT gracefully")
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-07-14 11:25:08 -05:00
Shyam Prasad N
c071b34f62 cifs: is_network_name_deleted should return a bool
Currently, is_network_name_deleted and it's implementations
do not return anything if the network name did get deleted.
So the function doesn't fully achieve what it advertizes.

Changed the function to return a bool instead. It will now
return true if the error returned is STATUS_NETWORK_NAME_DELETED
and the share (tree id) was found to be connected. It returns
false otherwise.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Acked-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-07-14 11:24:14 -05:00
Linus Torvalds
3a97a2993e drm fixes for 6.5-rc2
fbdev:
 - dma: Fix documented default preferred_bpp value
 
 ttm:
 - fix warning that we shouldn't mix && and ||
 - never consider pinned BOs for eviction&swap
 - Don't leak a resource on eviction error
 - Don't leak a resource on swapout move error
 - fix bulk_move corruption when adding a entry
 
 client:
 - Send hotplug event after registering a client
 
 dma-buf:
 - keep the signaling time of merged fences v3
 - fix an error pointer vs NULL bug
 
 sched:
 - wait for all deps in kill jobs
 - call set fence parent from scheduled
 
 i915:
 - Don't preserve dpll_hw_state for slave crtc in Bigjoiner
 - Consider OA buffer boundary when zeroing out reports
 - Remove dead code from gen8_pte_encode
 - Fix one wrong caching mode enum usage
 
 amdgpu:
 - SMU i2c locking fix
 - Fix a possible deadlock in process restoration for ROCm apps
 - Disable PCIe lane/speed switching on Intel platforms (the platforms don't support it)
 
 nouveau:
 - disp: fix HDMI on gt215+
 - disp/g94: enable HDMI
 - acr: Abort loading ACR if no firmware was found
 - bring back blit subchannel for pre nv50 GPUs
 - Fix drm_dp_remove_payload() invocation
 
 ivpu:
 - Fix VPU register access in irq disable
 - Clear specific interrupt status bits on C0
 
 bridge:
 - dw_hdmi: fix connector access for scdc
 - ti-sn65dsi86: Fix auxiliary bus lifetime
 
 panel:
 - simple: Add connector_type for innolux_at043tn24
 - simple: Add Powertip PH800480T013 drm_display_mode flags
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Merge tag 'drm-fixes-2023-07-14-1' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "There were a bunch of fixes lined up for 2 weeks, so we have quite a
  few scattered fixes, mostly amdgpu and i915, but ttm has a bunch and
  nouveau makes an appearance.

  So a bit busier than usual for rc2, but nothing seems out of the
  ordinary.

  fbdev:
   - dma: Fix documented default preferred_bpp value

  ttm:
   - fix warning that we shouldn't mix && and ||
   - never consider pinned BOs for eviction&swap
   - Don't leak a resource on eviction error
   - Don't leak a resource on swapout move error
   - fix bulk_move corruption when adding a entry

  client:
   - Send hotplug event after registering a client

  dma-buf:
   - keep the signaling time of merged fences v3
   - fix an error pointer vs NULL bug

  sched:
   - wait for all deps in kill jobs
   - call set fence parent from scheduled

  i915:
   - Don't preserve dpll_hw_state for slave crtc in Bigjoiner
   - Consider OA buffer boundary when zeroing out reports
   - Remove dead code from gen8_pte_encode
   - Fix one wrong caching mode enum usage

  amdgpu:
   - SMU i2c locking fix
   - Fix a possible deadlock in process restoration for ROCm apps
   - Disable PCIe lane/speed switching on Intel platforms (the platforms
     don't support it)

  nouveau:
   - disp: fix HDMI on gt215+
   - disp/g94: enable HDMI
   - acr: Abort loading ACR if no firmware was found
   - bring back blit subchannel for pre nv50 GPUs
   - Fix drm_dp_remove_payload() invocation

  ivpu:
   - Fix VPU register access in irq disable
   - Clear specific interrupt status bits on C0

  bridge:
   - dw_hdmi: fix connector access for scdc
   - ti-sn65dsi86: Fix auxiliary bus lifetime

  panel:
   - simple: Add connector_type for innolux_at043tn24
   - simple: Add Powertip PH800480T013 drm_display_mode flags"

* tag 'drm-fixes-2023-07-14-1' of git://anongit.freedesktop.org/drm/drm: (32 commits)
  drm/nouveau: bring back blit subchannel for pre nv50 GPUs
  drm/nouveau/acr: Abort loading ACR if no firmware was found
  drm/amd: Align SMU11 SMU_MSG_OverridePcieParameters implementation with SMU13
  drm/amd: Move helper for dynamic speed switch check out of smu13
  drm/amd/pm: conditionally disable pcie lane/speed switching for SMU13
  drm/amd/pm: share the code around SMU13 pcie parameters update
  drm/amdgpu: avoid restore process run into dead loop.
  drm/amd/pm: fix smu i2c data read risk
  drm/nouveau/disp/g94: enable HDMI
  drm/nouveau/disp: fix HDMI on gt215+
  drm/client: Send hotplug event after registering a client
  drm/i915: Fix one wrong caching mode enum usage
  drm/i915: Remove dead code from gen8_pte_encode
  drm/i915/perf: Consider OA buffer boundary when zeroing out reports
  drm/i915: Don't preserve dpll_hw_state for slave crtc in Bigjoiner
  drm/ttm: never consider pinned BOs for eviction&swap
  drm/fbdev-dma: Fix documented default preferred_bpp value
  dma-buf: fix an error pointer vs NULL bug
  accel/ivpu: Clear specific interrupt status bits on C0
  accel/ivpu: Fix VPU register access in irq disable
  ...
2023-07-14 09:10:28 -07:00
Linus Torvalds
ddbd91617f A fix to prevent a potential buffer overrun in the messenger, marked
for stable.
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Merge tag 'ceph-for-6.5-rc2' of https://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "A fix to prevent a potential buffer overrun in the messenger, marked
  for stable"

* tag 'ceph-for-6.5-rc2' of https://github.com/ceph/ceph-client:
  libceph: harden msgr2.1 frame segment length checks
2023-07-14 09:05:15 -07:00
Christoph Hellwig
9f87fc4d72 block: queue data commands from the flush state machine at the head
We used to insert the data commands following a pre-flush to the head
of the queue until commit 1e82fadfc6 ("blk-mq: do not do head insertions
post-pre-flush commands").  Not doing this seems to cause hangs of
such commands on NFS workloads when exported from file systems with
SATA SSDs.  I have no idea why this would starve these workloads,
but doing a semantic revert of this patch (which looks quite different
due to various other changes) fixes the hangs.

Fixes: 1e82fadfc6 ("blk-mq: do not do head insertions post-pre-flush commands")
Reported-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/20230714143014.11879-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-07-14 08:42:58 -06:00
Dan Carpenter
c20ecf7bb6 iommu/sva: Fix signedness bug in iommu_sva_alloc_pasid()
The ida_alloc_range() function returns negative error codes on error.
On success it returns values in the min to max range (inclusive).  It
never returns more then INT_MAX even if "max" is higher.  It never
returns values in the 0 to (min - 1) range.

The bug is that "min" is an unsigned int so negative error codes will
be promoted to high positive values errors treated as success.

Fixes: 1a14bf0fc7 ("iommu/sva: Use GFP_KERNEL for pasid allocation")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/6b32095d-7491-4ebb-a850-12e96209eaaf@kili.mountain
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2023-07-14 14:53:19 +02:00
Jason Gunthorpe
911476ef3c iommu: Fix crash during syfs iommu_groups/N/type
The err_restore_domain flow was accidently inserted into the success path
in commit 1000dccd5d ("iommu: Allow IOMMU_RESV_DIRECT to work on
ARM"). It should only happen if iommu_create_device_direct_mappings()
fails. This caused the domains the be wrongly changed and freed whenever
the sysfs is used, resulting in an oops:

  BUG: kernel NULL pointer dereference, address: 0000000000000000
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP NOPTI
  CPU: 1 PID: 3417 Comm: avocado Not tainted 6.4.0-rc4-next-20230602 #3
  Hardware name: Dell Inc. PowerEdge R6515/07PXPY, BIOS 2.3.6 07/06/2021
  RIP: 0010:__iommu_attach_device+0xc/0xa0
  Code: c0 c3 cc cc cc cc 48 89 f0 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 41 54 55 48 8b 47 08 <48> 8b 00 48 85 c0 74 74 48 89 f5 e8 64 12 49 00 41 89 c4 85 c0 74
  RSP: 0018:ffffabae0220bd48 EFLAGS: 00010246
  RAX: 0000000000000000 RBX: ffff9ac04f70e410 RCX: 0000000000000001
  RDX: ffff9ac044db20c0 RSI: ffff9ac044fa50d0 RDI: ffff9ac04f70e410
  RBP: ffff9ac044fa50d0 R08: 1000000100209001 R09: 00000000000002dc
  R10: 0000000000000000 R11: 0000000000000000 R12: ffff9ac043d54700
  R13: ffff9ac043d54700 R14: 0000000000000001 R15: 0000000000000001
  FS:  00007f02e30ae000(0000) GS:ffff9afeb2440000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 000000012afca006 CR4: 0000000000770ee0
  PKRU: 55555554
  Call Trace:
   <TASK>
   ? __die+0x24/0x70
   ? page_fault_oops+0x82/0x150
   ? __iommu_queue_command_sync+0x80/0xc0
   ? exc_page_fault+0x69/0x150
   ? asm_exc_page_fault+0x26/0x30
   ? __iommu_attach_device+0xc/0xa0
   ? __iommu_attach_device+0x1c/0xa0
   __iommu_device_set_domain+0x42/0x80
   __iommu_group_set_domain_internal+0x5d/0x160
   iommu_setup_default_domain+0x318/0x400
   iommu_group_store_type+0xb1/0x200
   kernfs_fop_write_iter+0x12f/0x1c0
   vfs_write+0x2a2/0x3b0
   ksys_write+0x63/0xe0
   do_syscall_64+0x3f/0x90
   entry_SYSCALL_64_after_hwframe+0x6e/0xd8
  RIP: 0033:0x7f02e2f14a6f

Reorganize the error flow so that the success branch and error branches
are clearer.

Fixes: 1000dccd5d ("iommu: Allow IOMMU_RESV_DIRECT to work on ARM")
Reported-by: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
Tested-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/0-v1-5bd8cc969d9e+1f1-iommu_set_def_fix_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2023-07-14 14:49:33 +02:00
Masami Hiramatsu (Google)
797311bce5 tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails
Fix to record 0-length data to data_loc in fetch_store_string*() if it fails
to get the string data.
Currently those expect that the data_loc is updated by store_trace_args() if
it returns the error code. However, that does not work correctly if the
argument is an array of strings. In that case, store_trace_args() only clears
the first entry of the array (which may have no error) and leaves other
entries. So it should be cleared by fetch_store_string*() itself.
Also, 'dyndata' and 'maxlen' in store_trace_args() should be updated
only if it is used (ret > 0 and argument is a dynamic data.)

Link: https://lore.kernel.org/all/168908496683.123124.4761206188794205601.stgit@devnote2/

Fixes: 40b53b7718 ("tracing: probeevent: Add array type support")
Cc: stable@vger.kernel.org
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2023-07-14 17:04:58 +09:00
Dave Airlie
38d88d5e97 amd-drm-fixes-6.5-2023-07-12:
amdgpu:
 - SMU i2c locking fix
 - Fix a possible deadlock in process restoration for ROCm apps
 - Disable PCIe lane/speed switching on Intel platforms (the platforms don't support it)
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Merge tag 'amd-drm-fixes-6.5-2023-07-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.5-2023-07-12:

amdgpu:
- SMU i2c locking fix
- Fix a possible deadlock in process restoration for ROCm apps
- Disable PCIe lane/speed switching on Intel platforms (the platforms don't support it)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230712184009.7740-1-alexander.deucher@amd.com
2023-07-14 13:19:54 +10:00
Dave Airlie
864e029fea Merge tag 'drm-intel-fixes-2023-07-13' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Don't preserve dpll_hw_state for slave crtc in Bigjoiner (Stanislav Lisovskiy)
- Consider OA buffer boundary when zeroing out reports [perf] (Umesh Nerlige Ramappa)
- Remove dead code from gen8_pte_encode (Tvrtko Ursulin)
- Fix one wrong caching mode enum usage (Tvrtko Ursulin)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZK+nHLCltaxoxVw/@tursulin-desk
2023-07-14 11:13:15 +10:00
Dave Airlie
b7a57386b8 A couple of nouveau patches addressing improving HDMI support and
firmware handling, a fix for TTM to skip pinned BO when evicting, and a
 fix for the fbdev documentation.
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Merge tag 'drm-misc-fixes-2023-07-13' of ssh://git.freedesktop.org/git/drm/drm-misc into drm-fixes

A couple of nouveau patches addressing improving HDMI support and
firmware handling, a fix for TTM to skip pinned BO when evicting, and a
fix for the fbdev documentation.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/nq3ke75juephbex5acfyi5t6bxv22nhmfcpfhru55haj2nv3us@gehrlmjbqgjk
2023-07-14 10:38:47 +10:00
Linus Torvalds
4b810bf037 Changes since last update:
- Fix two unexpected loop cases when reading beyond EOF;
 
  - Fix fsdax unavailability for chunk-based regular files;
 
  - Get rid of the remaining kmap_atomic();
 
  - Minor cleanups.
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Merge tag 'erofs-for-6.5-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs fixes from Gao Xiang:
 "Three patches address regressions related to post-EOF unexpected
  behaviors and fsdax unavailability of chunk-based regular files.

  The other two patches mainly get rid of kmap_atomic() and simplify
  z_erofs_transform_plain().

   - Fix two unexpected loop cases when reading beyond EOF

   - Fix fsdax unavailability for chunk-based regular files

   - Get rid of the remaining kmap_atomic()

   - Minor cleanups"

* tag 'erofs-for-6.5-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: fix fsdax unavailability for chunk-based regular files
  erofs: avoid infinite loop in z_erofs_do_read_page() when reading beyond EOF
  erofs: avoid useless loops in z_erofs_pcluster_readmore() when reading beyond EOF
  erofs: simplify z_erofs_transform_plain()
  erofs: get rid of the remaining kmap_atomic()
2023-07-13 14:35:02 -07:00
Linus Torvalds
b1983d427a Networking fixes for 6.5-rc2, including fixes from netfilter,
wireless and ebpf
 
 Current release - regressions:
 
   - netfilter: conntrack: gre: don't set assured flag for clash entries
 
   - wifi: iwlwifi: remove 'use_tfh' config to fix crash
 
 Previous releases - regressions:
 
   - ipv6: fix a potential refcount underflow for idev
 
   - icmp6: ifix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev()
 
   - bpf: fix max stack depth check for async callbacks
 
   - eth: mlx5e:
     - check for NOT_READY flag state after locking
     - fix page_pool page fragment tracking for XDP
 
   - eth: igc:
     - fix tx hang issue when QBV gate is closed
     - fix corner cases for TSN offload
 
   - eth: octeontx2-af: Move validation of ptp pointer before its usage
 
   - eth: ena: fix shift-out-of-bounds in exponential backoff
 
 Previous releases - always broken:
 
   - core: prevent skb corruption on frag list segmentation
 
   - sched:
     - cls_fw: fix improper refcount update leads to use-after-free
     - sch_qfq: account for stab overhead in qfq_enqueue
 
   - netfilter:
     - report use refcount overflow
     - prevent OOB access in nft_byteorder_eval
 
   - wifi: mt7921e: fix init command fail with enabled device
 
   - eth: ocelot: fix oversize frame dropping for preemptible TCs
 
   - eth: fec: recycle pages for transmitted XDP frames
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter, wireless and ebpf.

  Current release - regressions:

   - netfilter: conntrack: gre: don't set assured flag for clash entries

   - wifi: iwlwifi: remove 'use_tfh' config to fix crash

  Previous releases - regressions:

   - ipv6: fix a potential refcount underflow for idev

   - icmp6: ifix null-ptr-deref of ip6_null_entry->rt6i_idev in
     icmp6_dev()

   - bpf: fix max stack depth check for async callbacks

   - eth: mlx5e:
      - check for NOT_READY flag state after locking
      - fix page_pool page fragment tracking for XDP

   - eth: igc:
      - fix tx hang issue when QBV gate is closed
      - fix corner cases for TSN offload

   - eth: octeontx2-af: Move validation of ptp pointer before its usage

   - eth: ena: fix shift-out-of-bounds in exponential backoff

  Previous releases - always broken:

   - core: prevent skb corruption on frag list segmentation

   - sched:
      - cls_fw: fix improper refcount update leads to use-after-free
      - sch_qfq: account for stab overhead in qfq_enqueue

   - netfilter:
      - report use refcount overflow
      - prevent OOB access in nft_byteorder_eval

   - wifi: mt7921e: fix init command fail with enabled device

   - eth: ocelot: fix oversize frame dropping for preemptible TCs

   - eth: fec: recycle pages for transmitted XDP frames"

* tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
  selftests: tc-testing: add test for qfq with stab overhead
  net/sched: sch_qfq: account for stab overhead in qfq_enqueue
  selftests: tc-testing: add tests for qfq mtu sanity check
  net/sched: sch_qfq: reintroduce lmax bound check for MTU
  wifi: cfg80211: fix receiving mesh packets without RFC1042 header
  wifi: rtw89: debug: fix error code in rtw89_debug_priv_send_h2c_set()
  net: txgbe: fix eeprom calculation error
  net/sched: make psched_mtu() RTNL-less safe
  net: ena: fix shift-out-of-bounds in exponential backoff
  netdevsim: fix uninitialized data in nsim_dev_trap_fa_cookie_write()
  net/sched: flower: Ensure both minimum and maximum ports are specified
  MAINTAINERS: Add another mailing list for QUALCOMM ETHQOS ETHERNET DRIVER
  docs: netdev: update the URL of the status page
  wifi: iwlwifi: remove 'use_tfh' config to fix crash
  xdp: use trusted arguments in XDP hints kfuncs
  bpf: cpumap: Fix memory leak in cpu_map_update_elem
  wifi: airo: avoid uninitialized warning in airo_get_rate()
  octeontx2-pf: Add additional check for MCAM rules
  net: dsa: Removed unneeded of_node_put in felix_parse_ports_node
  net: fec: use netdev_err_once() instead of netdev_err()
  ...
2023-07-13 14:21:22 -07:00
Linus Torvalds
ebc27aacee Tracing fixes and clean ups:
- Fix some missing-prototype warnings
 
 - Fix user events struct args (did not include size of struct)
   When creating a user event, the "struct" keyword is to denote
   that the size of the field will be passed in. But the parsing
   failed to handle this case.
 
 - Add selftest to struct sizes for user events
 
 - Fix sample code for direct trampolines.
   The sample code for direct trampolines attached to handle_mm_fault().
   But the prototype changed and the direct trampoline sample code
   was not updated. Direct trampolines needs to have the arguments correct
   otherwise it can fail or crash the system.
 
 - Remove unused ftrace_regs_caller_ret() prototype.
 
 - Quiet false positive of FORTIFY_SOURCE
   Due to backward compatibility, the structure used to save stack traces
   in the kernel had a fixed size of 8. This structure is exported to
   user space via the tracing format file. A change was made to allow
   more than 8 functions to be recorded, and user space now uses the
   size field to know how many functions are actually in the stack.
   But the structure still has size of 8 (even though it points into
   the ring buffer that has the required amount allocated to hold a
   full stack. This was fine until the fortifier noticed that the
   memcpy(&entry->caller, stack, size) was greater than the 8 functions
   and would complain at runtime about it. Hide this by using a pointer
   to the stack location on the ring buffer instead of using the address
   of the entry structure caller field.
 
 - Fix a deadloop in reading trace_pipe that was caused by a mismatch
   between ring_buffer_empty() returning false which then asked to
   read the data, but the read code uses rb_num_of_entries() that
   returned zero, and causing a infinite "retry".
 
 - Fix a warning caused by not using all pages allocated to store
   ftrace functions, where this can happen if the linker inserts a bunch of
   "NULL" entries, causing the accounting of how many pages needed
   to be off.
 
 - Fix histogram synthetic event crashing when the start event is
   removed and the end event is still using a variable from it.
 
 - Fix memory leak in freeing iter->temp in tracing_release_pipe()
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Merge tag 'trace-v6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix some missing-prototype warnings

 - Fix user events struct args (did not include size of struct)

   When creating a user event, the "struct" keyword is to denote that
   the size of the field will be passed in. But the parsing failed to
   handle this case.

 - Add selftest to struct sizes for user events

 - Fix sample code for direct trampolines.

   The sample code for direct trampolines attached to handle_mm_fault().
   But the prototype changed and the direct trampoline sample code was
   not updated. Direct trampolines needs to have the arguments correct
   otherwise it can fail or crash the system.

 - Remove unused ftrace_regs_caller_ret() prototype.

 - Quiet false positive of FORTIFY_SOURCE

   Due to backward compatibility, the structure used to save stack
   traces in the kernel had a fixed size of 8. This structure is
   exported to user space via the tracing format file. A change was made
   to allow more than 8 functions to be recorded, and user space now
   uses the size field to know how many functions are actually in the
   stack.

   But the structure still has size of 8 (even though it points into the
   ring buffer that has the required amount allocated to hold a full
   stack.

   This was fine until the fortifier noticed that the
   memcpy(&entry->caller, stack, size) was greater than the 8 functions
   and would complain at runtime about it.

   Hide this by using a pointer to the stack location on the ring buffer
   instead of using the address of the entry structure caller field.

 - Fix a deadloop in reading trace_pipe that was caused by a mismatch
   between ring_buffer_empty() returning false which then asked to read
   the data, but the read code uses rb_num_of_entries() that returned
   zero, and causing a infinite "retry".

 - Fix a warning caused by not using all pages allocated to store ftrace
   functions, where this can happen if the linker inserts a bunch of
   "NULL" entries, causing the accounting of how many pages needed to be
   off.

 - Fix histogram synthetic event crashing when the start event is
   removed and the end event is still using a variable from it

 - Fix memory leak in freeing iter->temp in tracing_release_pipe()

* tag 'trace-v6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix memory leak of iter->temp when reading trace_pipe
  tracing/histograms: Add histograms to hist_vars if they have referenced variables
  tracing: Stop FORTIFY_SOURCE complaining about stack trace caller
  ftrace: Fix possible warning on checking all pages used in ftrace_process_locs()
  ring-buffer: Fix deadloop issue on reading trace_pipe
  tracing: arm64: Avoid missing-prototype warnings
  selftests/user_events: Test struct size match cases
  tracing/user_events: Fix struct arg size match check
  x86/ftrace: Remove unsued extern declaration ftrace_regs_caller_ret()
  arm64: ftrace: Add direct call trampoline samples support
  samples: ftrace: Save required argument registers in sample trampolines
2023-07-13 13:44:28 -07:00
Linus Torvalds
1599932894 xen: branch for v6.5-rc2
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Merge tag 'for-linus-6.5-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - a cleanup of the Xen related ELF-notes

 - a fix for virtio handling in Xen dom0 when running Xen in a VM

* tag 'for-linus-6.5-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/virtio: Fix NULL deref when a bridge of PCI root bus has no parent
  x86/Xen: tidy xen-head.S
2023-07-13 13:39:36 -07:00
Linus Torvalds
9350cd0190 sh fixes for v6.5
- sh: hd64461: Handle virq offset for offchip IRQ base and HD64461 IRQ
 - sh: mach-dreamcast: Handle virq offset in cascaded IRQ demux
 - sh: mach-highlander: Handle virq offset in cascaded IRL demux
 - sh: mach-r2d: Handle virq offset in cascaded IRL demux
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Merge tag 'sh-for-v6.5-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux

Pull sh fixes from John Paul Adrian Glaubitz:
 "The sh updates introduced multiple regressions.

  In particular, the change a8ac296114 ("sh: Avoid using IRQ0 on SH3
  and SH4") causes several boards to hang during boot due to incorrect
  IRQ numbers.

  Geert Uytterhoeven has contributed patches that handle the virq offset
  in the IRQ code for the dreamcast, highlander and r2d boards while
  Artur Rojek has contributed a patch which handles the virq offset for
  the hd64461 companion chip"

* tag 'sh-for-v6.5-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
  sh: hd64461: Handle virq offset for offchip IRQ base and HD64461 IRQ
  sh: mach-dreamcast: Handle virq offset in cascaded IRQ demux
  sh: mach-highlander: Handle virq offset in cascaded IRL demux
  sh: mach-r2d: Handle virq offset in cascaded IRL demux
2023-07-13 13:34:00 -07:00
Jens Axboe
90b4622954 nvme fixes for Linux 6.5
- Don't require quirk to use duplicate namespace identifiers
    (Christoph, Sagi)
  - One more BOGUS_NID quirk (Pankaj)
  - IO timeout and error hanlding fixes for PCI (Keith)
  - Enhanced metadata format mask fix (Ankit)
  - Association race condition fix for fibre channel (Michael)
  - Correct debugfs error checks (Minjie)
  - Use PAGE_SECTORS_SHIFT where needed (Damien)
  - Reduce kernel logs for legacy nguid attribute (Keith)
  - Use correct dma direction when unmapping metadata (Ming)
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Merge tag 'nvme-6.5-2023-07-13' of git://git.infradead.org/nvme into block-6.5

Pull NVMe fixes from Keith:

"nvme fixes for Linux 6.5

 - Don't require quirk to use duplicate namespace identifiers
   (Christoph, Sagi)
 - One more BOGUS_NID quirk (Pankaj)
 - IO timeout and error hanlding fixes for PCI (Keith)
 - Enhanced metadata format mask fix (Ankit)
 - Association race condition fix for fibre channel (Michael)
 - Correct debugfs error checks (Minjie)
 - Use PAGE_SECTORS_SHIFT where needed (Damien)
 - Reduce kernel logs for legacy nguid attribute (Keith)
 - Use correct dma direction when unmapping metadata (Ming)"

* tag 'nvme-6.5-2023-07-13' of git://git.infradead.org/nvme:
  nvme-pci: fix DMA direction of unmapping integrity data
  nvme: don't reject probe due to duplicate IDs for single-ported PCIe devices
  nvme: ensure disabling pairs with unquiesce
  nvme-fc: fix race between error recovery and creating association
  nvme-fc: return non-zero status code when fails to create association
  nvme: fix parameter check in nvme_fault_inject_init()
  nvme: warn only once for legacy uuid attribute
  nvme: fix the NVME_ID_NS_NVM_STS_MASK definition
  nvmet: use PAGE_SECTORS_SHIFT
  nvme: add BOGUS_NID quirk for Samsung SM953
2023-07-13 14:26:38 -06:00
Chengming Zhou
5c17f45e91 blk-mq: fix start_time_ns and alloc_time_ns for pre-allocated rq
The iocost rely on rq start_time_ns and alloc_time_ns to tell saturation
state of the block device. Most of the time request is allocated after
rq_qos_throttle() and its alloc_time_ns or start_time_ns won't be affected.

But for plug batched allocation introduced by the commit 47c122e35d
("block: pre-allocate requests if plug is started and is a batch"), we can
rq_qos_throttle() after the allocation of the request. This is what the
blk_mq_get_cached_request() does.

In this case, the cached request alloc_time_ns or start_time_ns is much
ahead if blocked in any qos ->throttle().

Fix it by setting alloc_time_ns and start_time_ns to now when the allocated
request is actually used.

Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230710105516.2053478-1-chengming.zhou@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-07-13 12:30:57 -06:00
Arnd Bergmann
ec7633de40 sparc: mark __arch_xchg() as __always_inline
An otherwise correct change to the atomic operations uncovered an
existing bug in the sparc __arch_xchg() function, which is calls
__xchg_called_with_bad_pointer() when its arguments are unknown at
compile time:

ERROR: modpost: "__xchg_called_with_bad_pointer" [lib/atomic64_test.ko] undefined!

This now happens because gcc determines that it's better to not inline the
function. Avoid this by just marking the function as __always_inline
to force the compiler to do the right thing here.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/all/c525adc9-6623-4660-8718-e0c9311563b8@roeck-us.net/
Fixes: d12157efc8 ("locking/atomic: make atomic*_{cmp,}xchg optional")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/20230628094938.2318171-1-arnd@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
2023-07-13 09:54:32 -07:00
Kees Cook
e0b7b20812 MAINTAINERS: Foolishly claim maintainership of string routines
Since the string API is tightly coupled with FORTIFY_SOURCE, I am
offering myself up as maintainer for it. Thankfully Andy is already a
reviewer and can keep me on the straight and narrow.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230712194625.never.252-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
2023-07-13 09:52:20 -07:00
Masami Hiramatsu (Google)
4ed8f337de Revert "tracing: Add "(fault)" name injection to kernel probes"
This reverts commit 2e9906f84f.

It was turned out that commit 2e9906f84f ("tracing: Add "(fault)"
name injection to kernel probes") did not work correctly and probe
events still show just '(fault)' (instead of '"(fault)"'). Also,
current '(fault)' is more explicit that it faulted.

This also moves FAULT_STRING macro to trace.h so that synthetic
event can keep using it, and uses it in trace_probe.c too.

Link: https://lore.kernel.org/all/168908495772.123124.1250788051922100079.stgit@devnote2/
Link: https://lore.kernel.org/all/20230706230642.3793a593@rorschach.local.home/

Cc: stable@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-14 00:37:43 +09:00
Masami Hiramatsu (Google)
e38e2c6a9e tracing/probes: Fix to update dynamic data counter if fetcharg uses it
Fix to update dynamic data counter ('dyndata') and max length ('maxlen')
only if the fetcharg uses the dynamic data. Also get out arg->dynamic
from unlikely(). This makes dynamic data address wrong if
process_fetch_insn() returns error on !arg->dynamic case.

Link: https://lore.kernel.org/all/168908494781.123124.8160245359962103684.stgit@devnote2/

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Link: https://lore.kernel.org/all/20230710233400.5aaf024e@gandalf.local.home/
Fixes: 9178412ddf ("tracing: probeevent: Return consumed bytes of dynamic area")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-14 00:37:00 +09:00
Masami Hiramatsu (Google)
b41326b5e0 tracing/probes: Fix not to count error code to total length
Fix not to count the error code (which is minus value) to the total
used length of array, because it can mess up the return code of
process_fetch_insn_bottom(). Also clear the 'ret' value because it
will be used for calculating next data_loc entry.

Link: https://lore.kernel.org/all/168908493827.123124.2175257289106364229.stgit@devnote2/

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/8819b154-2ba1-43c3-98a2-cbde20892023@moroto.mountain/
Fixes: 9b960a3883 ("tracing: probeevent: Unify fetch_insn processing common part")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-14 00:36:28 +09:00
Masami Hiramatsu (Google)
66bcf65d6c tracing/probes: Fix to avoid double count of the string length on the array
If an array is specified with the ustring or symstr, the length of the
strings are accumlated on both of 'ret' and 'total', which means the
length is double counted.
Just set the length to the 'ret' value for avoiding double counting.

Link: https://lore.kernel.org/all/168908492917.123124.15076463491122036025.stgit@devnote2/

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/8819b154-2ba1-43c3-98a2-cbde20892023@moroto.mountain/
Fixes: 88903c4643 ("tracing/probe: Add ustring type for user-space string")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-14 00:35:53 +09:00
Masami Hiramatsu (Google)
d5f28bb1ce fprobes: Add a comment why fprobe_kprobe_handler exits if kprobe is running
Add a comment the reason why fprobe_kprobe_handler() exits if any other
kprobe is running.

Link: https://lore.kernel.org/all/168874788299.159442.2485957441413653858.stgit@devnote2/

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Link: https://lore.kernel.org/all/20230706120916.3c6abf15@gandalf.local.home/
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-14 00:24:00 +09:00
Ming Lei
b8f6446b68 nvme-pci: fix DMA direction of unmapping integrity data
DMA direction should be taken in dma_unmap_page() for unmapping integrity
data.

Fix this DMA direction, and reported in Guangwu's test.

Reported-by: Guangwu Zhang <guazhang@redhat.com>
Fixes: 4aedb70543 ("nvme-pci: split metadata handling from nvme_map_data / nvme_unmap_data")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-07-13 08:16:07 -07:00
Christoph Hellwig
ac522fc6c3 nvme: don't reject probe due to duplicate IDs for single-ported PCIe devices
While duplicate IDs are still very harmful, including the potential to easily
see changing devices in /dev/disk/by-id, it turn out they are extremely
common for cheap end user NVMe devices.

Relax our check for them for so that it doesn't reject the probe on
single-ported PCIe devices, but prints a big warning instead.  In doubt
we'd still like to see quirk entries to disable the potential for
changing supposed stable device identifier links, but this will at least
allow users how have two (or more) of these devices to use them without
having to manually add a new PCI ID entry with the quirk through sysfs or
by patching the kernel.

Fixes: 2079f41ec6 ("nvme: check that EUI/GUID/UUID are globally unique")
Cc: stable@vger.kernel.org # 6.0+
Co-developed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-07-13 08:12:50 -07:00
Zheng Yejian
d5a8218963 tracing: Fix memory leak of iter->temp when reading trace_pipe
kmemleak reports:
  unreferenced object 0xffff88814d14e200 (size 256):
    comm "cat", pid 336, jiffies 4294871818 (age 779.490s)
    hex dump (first 32 bytes):
      04 00 01 03 00 00 00 00 08 00 00 00 00 00 00 00  ................
      0c d8 c8 9b ff ff ff ff 04 5a ca 9b ff ff ff ff  .........Z......
    backtrace:
      [<ffffffff9bdff18f>] __kmalloc+0x4f/0x140
      [<ffffffff9bc9238b>] trace_find_next_entry+0xbb/0x1d0
      [<ffffffff9bc9caef>] trace_print_lat_context+0xaf/0x4e0
      [<ffffffff9bc94490>] print_trace_line+0x3e0/0x950
      [<ffffffff9bc95499>] tracing_read_pipe+0x2d9/0x5a0
      [<ffffffff9bf03a43>] vfs_read+0x143/0x520
      [<ffffffff9bf04c2d>] ksys_read+0xbd/0x160
      [<ffffffff9d0f0edf>] do_syscall_64+0x3f/0x90
      [<ffffffff9d2000aa>] entry_SYSCALL_64_after_hwframe+0x6e/0xd8

when reading file 'trace_pipe', 'iter->temp' is allocated or relocated
in trace_find_next_entry() but not freed before 'trace_pipe' is closed.

To fix it, free 'iter->temp' in tracing_release_pipe().

Link: https://lore.kernel.org/linux-trace-kernel/20230713141435.1133021-1-zhengyejian1@huawei.com

Cc: stable@vger.kernel.org
Fixes: ff895103a8 ("tracing: Save off entry when peeking at next entry")
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-13 10:48:36 -04:00